<ui:composition xmlns="http://www.w3.org/1999/xhtml"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:p="http://primefaces.org/ui"
	xmlns:pe="http://primefaces.org/ui/extensions"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:fn="http://java.sun.com/jsp/jstl/functions">

	<p:layout style="width: 100%; height: 650px;">
		<p:layoutUnit position="north" size="400" resizable="true">
			<h:form id="form_main_top">
				iam form main top
			</h:form>
		</p:layoutUnit>
	
	
		<p:layoutUnit position="center">
   			<h:form id="form_main_center">
   				form main center
   			</h:form>
   		</p:layoutUnit>
	</p:layout>

</ui:composition>